speculate

推測する

確かな情報が足りないとき、何が本当かを考えて述べる。

やさしい英語で： To suggest what might be true when you do not have enough facts to be sure.

• We can only speculate about the cause.
• Reporters speculated that she would resign.
• It is too early to speculate on the results.

使い方： speculate about/on something (Experts speculated about the reasons for the delay.); speculate that… (They speculated that the painting was a copy.); speculate whether… (We can only speculate whether prices will rise.)

類義語： guess, conjecture

よく使う表現： speculate about something, speculate on something, speculate that something

投機する

大きな利益を狙い、損をする危険を承知で株などを売り買いする。

やさしい英語で： To buy and sell things such as shares, taking risks to try to make a large profit.

• He speculates in shares.
• They lost money speculating in property.
• Some traders speculate on changes in oil prices.

使い方： speculate in something (She began to speculate in foreign currencies.); speculate on something (Investors speculated on a rise in wheat prices.)

よく使う表現： speculate in shares, speculate on prices, speculate in property